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What Counts as an HVAC Emergency? When to Call 24/7 Service

Published 2026-07-19 by Airbourne Air Conditioning

Our phones ring 24 hours a day, and homeowners often ask: "Is this really an emergency?" Here's how we think about it.

Call immediately (safety issues)

  • Gas smell — leave the house, call the gas company, then call us
  • Carbon monoxide alarm — get outside, call 911, then call for emergency heating repair
  • Burning smell or smoke from the unit — shut it off at the breaker
  • Sparks, buzzing at the panel or a breaker that keeps tripping
  • Water pouring through a ceiling from an attic air handler

Call for 24/7 service (comfort and health)

  • No AC during a heat advisory, especially with infants, elderly family members or pets — see emergency AC repair
  • No heat with outdoor temperatures below freezing — risk of frozen pipes
  • Complete system failure before a holiday or weekend

Can usually wait until morning

  • AC struggling but still cooling somewhat
  • Unusual noise with normal operation
  • One room too warm or too cold
  • Thermostat scheduling issues

What to do while you wait

In heat: close blinds, run ceiling fans, stay hydrated and move to the lowest floor. In cold: close off unused rooms, open cabinet doors under sinks on exterior walls and let faucets drip.

Airbourne Air Conditioning provides 24-hour emergency HVAC repair in every Tennessee city, from Nashville to Johnson City. Call (855) 459-5498 — a real person answers.

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